UA2 experiment
E7985
The UA2 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that played a key role in confirming the existence and properties of the W boson.
All labels observed (3)
| Label | Occurrences |
|---|---|
| UA2 experiment canonical | 6 |
| UA2 | 1 |
| UA2 interaction point | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T95311 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: UA2 experiment Context triple: [W boson, wasDiscoveredBy, UA2 experiment]
-
A.
NA62
NA62 is a high-energy physics experiment at CERN designed primarily to study rare kaon decays and test the predictions of the Standard Model.
-
B.
Antiproton Decelerator
The Antiproton Decelerator is a specialized CERN facility that slows down antiprotons to low energies for precision experiments in antimatter physics.
-
C.
ATLAS
ATLAS is a major particle physics experiment and detector at the Large Hadron Collider that investigates fundamental particles and forces, including the Higgs boson.
-
D.
LHCf
LHCf is a CERN experiment at the Large Hadron Collider that studies forward particles produced in proton–proton collisions to improve our understanding of ultra-high-energy cosmic rays.
-
E.
Large Hadron Collider
The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: UA2 experiment Target entity description: The UA2 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that played a key role in confirming the existence and properties of the W boson.
-
A.
NA62
NA62 is a high-energy physics experiment at CERN designed primarily to study rare kaon decays and test the predictions of the Standard Model.
-
B.
Antiproton Decelerator
The Antiproton Decelerator is a specialized CERN facility that slows down antiprotons to low energies for precision experiments in antimatter physics.
-
C.
ATLAS
ATLAS is a major particle physics experiment and detector at the Large Hadron Collider that investigates fundamental particles and forces, including the Higgs boson.
-
D.
LHCf
LHCf is a CERN experiment at the Large Hadron Collider that studies forward particles produced in proton–proton collisions to improve our understanding of ultra-high-energy cosmic rays.
-
E.
Large Hadron Collider
The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
collaboration
ⓘ
particle physics experiment ⓘ |
| abbreviation |
UA2 experiment
self-linksurface differs
ⓘ
surface form:
UA2
|
| acceleratorUsed | Super Proton Synchrotron ⓘ |
| associatedWith | UA1 experiment ⓘ |
| collaborationType | international collaboration ⓘ |
| collisionType | proton–antiproton ⓘ |
| contributedTo | establishment of the Standard Model electroweak theory ⓘ |
| country | Switzerland ⓘ |
| dataSource |
Super Proton Synchrotron
ⓘ
surface form:
Super Proton Synchrotron proton–antiproton collider program
|
| detectorType | general-purpose collider detector ⓘ |
| energyScale | hundreds of GeV center-of-mass energy ⓘ |
| era | 1980s ⓘ |
| field | high-energy physics ⓘ |
| hostLaboratory |
CERN
ⓘ
surface form:
European Organization for Nuclear Research
|
| keyResult |
confirmation of the existence of the W boson
ⓘ
measurement of W boson properties ⓘ observation of Z boson production ⓘ |
| location | CERN ⓘ |
| primaryGoal |
search for intermediate vector bosons
ⓘ
study proton–antiproton collisions at high energy ⓘ |
| roleInPhysics | independent confirmation of W boson discovery ⓘ |
| studiedParticle |
W boson
ⓘ
Z boson ⓘ |
| usedFor |
precision measurements of weak boson production
ⓘ
tests of the electroweak sector of the Standard Model ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: UA2 experiment Description of subject: The UA2 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that played a key role in confirming the existence and properties of the W boson.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
UA2
subject surface form:
Z boson
subject surface form:
W− boson
this entity surface form:
UA2 interaction point